变量调节器（函数）

1.capitalize(首字母大写)：将变量里的所有单词首字大写。
index.php:

$smarty = new Smarty;
$smarty->assign('articleTitle','Police begin campain to rundown jaywalkers.');
$smarty->display('index.tpl');

index.tpl:

{$articleTitle}
{$articleTitle|capitalize}

OUTPUT:

Police begin campain to rundown jaywalkers.
Police Begin Campain To Rundown Jaywalkers.

 2.count_characters(字符计数)：计算变量里的字符数。有一个可选参数，默认为false决定是否计算空格字符。
index.php:

$smarty = new Smarty;
$smarty->assign('articleTitle','Cold Wave Linked to Temperatures.');
$smarty->display('index.tpl');

index.tpl:

{$articleTitle}
{$articleTitle|count_characters}
{$articleTitle|count_characters:true}

OUTPUT:

Cold Wave Linked to Temperatures.
29
33

 3.cat(连接字符串)：将act里的值连接到给定的变量后面。
index.php

$smarty = new Smarty;
$smarty->assign('articleTitle',"Psychics predict world didn't end.");
$smarty->display('index.tpl');

index.tpl

{$articleTitle|cat:"yesterday."}

OUTPUT:

Psychics predict world didn't end yesterday.

 4.count_paragraphs(计算段数)：计算变量里的段落数量。
index.php:

$smarty = new Smarty;
$smarty->assign('articleTitle',"War Dims Hope for Peace. Child's Death Ruins
Couple's Holiday.\n\nMan is Fatally Slain. Death Causes Loneliness, Feeling of Isolation.");
$smarty->('index.tpl');

index.tpl：

{$articleTitle}
{$articletitle|count_paragraphs}

OUTPUT:

War Dims Hope for Peace. Child's Death Ruins Couple's Holiday.

Man is Fatally Slain. Death Causes Loneliness, Feeling of Isolation.
2

 5.count_sentences(计算句数):计算变量里句子的数量。
index.php

$smarty = new Smarty;
$smarty->assign('articleTitle','Two Soviet Ships Collide - One Dies.Enraged Cow Injures Farmer with Axe.');
$smarty->display('index.tpl');

index.tpl:

{$articleTitle}
{$articleTitle|count_sentences}

OUTPUT:

Two Soviet Ships Collide - One Dies.Enraged Cow Injures Farmer with Axe.
2

 6.count_words(计算词数):计算变量里的词数。
index.php

$smarty = new Smarty;
$smarty->assign('articleTitle','Dealers Will Hear Car Talk at Noon.');
$smarty->display('index.tpl');

index.tpl

{$articleTitle}
{$articleTitle|count_words}

OUTPUT:

Dealers Will Hear Car Talk Talk at Noon.
7

 7.date_format(格式化日期)：格式化获得的时间和日期。
index.php

$smarty = new Smarty;
$smarty->assign('yesterday',strtotime('-1 day'));
$smarty->display('index.tpl');

index.tpl

{$smarty.now|date_format:"%Y-%m-%d %H:%M:%S"}

OUTPUT:

2012-11-12 15:05:20

 8.string_format(字符串格式化)：一种格式化字符串方法。例如格式化为十进制数等等。使用sprintf语法格式化。

index.php

$smarty = new Smarty;
$smarty->assign('number',23.123456);
$smarty->display('index.tpl');

index.tpl

{$number}
{$number|string_format:"%.2f"}
{$number|string_format:"%d"}

OUTPUT:

23.123456
23.12
23

 9.escape(编码)：用于html转码，url转码，在没有转码的变量上转换单引号，十六进制转码，十六进制美化，或者javascript转码。默认码是html转码。

index.php

$smarty = new Smarty;
$smarty->assign('articleTitle',"'Stiff Opposition Expected to Casketless Funeral Plan'");
$smarty->display('index.tpl');

index.tpl

{$articleTitle}
{$articleTitle|escape}
{$articleTitle|escape:"html"} {* escapes & " ' < > *}
{$articleTitle|escape:"htmlall"} {* escapes ALL html entities *}
{$articleTitle|escape:"url"}
{$articleTitle|escape:"quotes"}
<a href="mailto:{$EmailAddress|escape:"hex"}">{$EmailAddress|escape:"hexentity"}</a>

OUTPUT:

'Stiff Opposition Expected to Casketless Funeral Plan'
&#039;Stiff Opposition Expected to Casketless Funeral Plan&#039;
&#039;Stiff Opposition Expected to Casketless Funeral Plan&#039;
&#039;Stiff Opposition Expected to Casketless Funeral Plan&#039;
%27Stiff+Opposition+Expected+to+Casketless+Funeral+Plan%27
\'Stiff Opposition Expected to Casketless Funeral Plan\'
<a href="mailto:%62%6f%62%40%6d%65%2e%6e%65%74">&#x62;&#x6f;&#x62;&#x40;&#x6d;&#x65;&#x2e;&#x6e;&#x65;&#x74;</a>

  10.nl2br(换行符替换成<br/>):将所有换行符替换成<br/>.功能同PHP中的nl2br()函数一样。

index.php

$smarty = new Smarty;
$smarty->assign('artucleTitle',"Sun or rain expected\ntoday, dark tonight");
$smarty->display('index.tpl');

index.tpl

{$articleTitle|nl2br}

OUTPUT:

Sun or rain expected<br/>today,dark tonigh